genetics study guide
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| What is unique about an identical twin's DNA? | identical twins nearly have the same DNA.
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| what is carrier? | a person or other organisms that has inherited a recessive allele for a genetic trait.
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| what is the difference between mitosis and meiosis? | mitosis occurs both in sexually and asexually reproduction.
meiosis occurs only in sexually reproduction.
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| what is sickle-cell anemia? | a disease in which your body produces abnormally shaped red blood cells.
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| what is genetic engineering? | genes from one organism transferred into DNA or another organism.l
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| what is a gene? | the basic physical and function unit of heredity.
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| Describe the types of mutations that can occur. | substitution
deletion
addition
insertion
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| how does down syndrome occur? | down syndrome is caused by a person having three copies of chromosomes.
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| what are the male and female sex chromosomes? | (xx) female (xy) male
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| what rules must be followed when ATCG bases are paired? | the base pairing rules for DNA are governed by the complementary in a g-c and a-t pairing.
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| describe DNA | DNA is made up of nucleotide' s. it's shaped like a spiral ladder.
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| what is inbreeding? | crossing 2 individuals that have identical alleles.
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| what is selective breeding? | selective a few organisms w/ desired traits.
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| what was the purpose of the human genome project? | to identify the DNA sequence of every gene in the genome.
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| what is genome? | all the DNA in one cell of an organism
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| what is mutation? | any change in the gene or chromosome
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| what is karotype? | the number and appearance of chromosomes in the nuclues
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| traits are influenced by the genes and environmental factors. explain the difference. | human behavior answer the question by calculating herebility factors percentage estimates contribution, that genes make some observed differences
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| what is cloning? | an organism that is genetically identical to the organism from where it was born.
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